See your GP if you notice a lump in your breast or if you have a lump that's rapidly increasing in size elsewhere on your body.
Your GP will refer you to a specialist for tests if they think you may have cancer.
See your GP if you've experienced changes in bowel habits that have lasted more than a few weeks.
See your GP if you notice any unusual moles, sores, lumps, blemishes, markings or changes in the way an area of the skin looks or feels.